US4340530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride type resin composition
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1980-07-02
•
Granted: 1982-07-20
•
Expires: 2000-07-02
Abstract
Abstract A composition comprises 100 parts by weight of a vinyl chloride type resin and 25 to 200 parts by weight of a plasticizer, the vinyl chloride type resin being composed of 1 to 90% by weight of tetrahydrofuran-insoluble gel fraction and the balance of tetrahydrofuran-soluble fraction. This composition gives a rubbery elastomer having an excellent heat deformation resistance and an excellent matt finish and a small compression permanent set. Though it is close to rubber in properties, the composition has a moldability and processability similar to those of conventional thermoplastic resins, and can be formed into a sheet for interior material of automobile, a packing, a tube, etc.
Inventors
- 👤 Takeichi Higashiguchi
- 👤 Masasuke Fukuoka
- 👤 Tomoyuki Emura
- 👤 Yasuhiro Moriuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
146 words
A vinyl chloride resin composition consisting essentially of 100 parts by weight of a vinyl chloride resin and 25 to 200 parts by weight of a plasticizer, said vinyl chloride resin being composed of 28 to 90% by weight of tetrahydrofuran-insoluble gel fraction and the remainder of tetrahydrofuran-soluble fraction, and being (1) a polymer obtained by reacting vinyl chloride monomer or a mixture thereof and a minor amount of at least one monomer copolymerizable therewith, with a polyfunctional compound selected from the group consisting of diallyl esters of phthalic acid, diallyl esters of ethylenically unsaturated dibasic acids, diallyl ethers, triallyl cyanurate, triallyl isocyanurate, triallyl trimellitate, divinyl ethers, dimethacrylic and diacrylic esters of polyhydric alcohols, trimethacrylic and triacrylic esters of polyhydric alcohols, bismethacryloyloxyethylene phthalate and 1,3,5-triacryloyl hexahydrotriazine, or (2) a blend of (a) said polymer (1) and (b) a usual vinyl chloride type resin free from gel.
Claim 2
Dependent Claim
146 words
A vinyl chloride resin composition consisting essentially of 100 parts by weight of a vinyl chloride resin and 25 to 200 parts by weight of a plasticizer, said vinyl chloride resin being composed of 28 to 90% by weight of tetrahydrofuran-insoluble gel fraction and the remainder of tetrahydrofuran-soluble fraction, and being (1) a polymer obtained by reacting vinyl chloride monomer or a mixture thereof and a minor amount of at least one monomer copolymerizable therewith, with a polyfunctional compound selected from the group consisting of diallyl esters of phthalic acid, diallyl esters of ethylenically unsaturated dibasic acids, diallyl ethers, triallyl cyanurate, triallyl isocyanurate, triallyl trimellitate, divinyl ethers, dimethacrylic and diacrylic esters of polyhydric alcohols, trimethacrylic and triacrylic esters of polyhydric alcohols, bismethacryloyloxyethylene phthalate and 1,3,5-triacryloyl hexahydrotriazine, or (2) a blend of (a) said polymer (1) and (b) a usual vinyl chloride type resin free from gel.
Claim 3
Dependent Claim
36 words
A composition according to claim 1, wherein the vinyl chloride resin is a polymer obtained by reacting vinyl chloride monomer or a mixture thereof and a minor amount of monomer copolymerizable therewith, with the polyfunctional compound.
Claim 4
Dependent Claim
24 words
A composition according to claim 1, wherein the vinyl chloride resin is a polymer obtained by reacting vinyl chloride monomer with the polyfunctional compound.
Claim 5
Dependent Claim
35 words
A composition according to claim 1, wherein the vinyl chloride resin is a polymer obtained by reacting a mixture of vinyl chloride monomer and a minor amount of monomer copolymerizable therewith, with the polyfunctional compound.
Claim 6
Dependent Claim
50 words
A composition according to claim 1, wherein the vinyl chloride resin is a blend of a conventional vinyl chloride homopolymer or copolymer free from gel with a polymer obtained by reacting vinyl chloride monomer or a mixture thereof and a minor amount of monomer copolymerizable therewith, with the polyfunctional compound.
Claim 7
Dependent Claim
38 words
A composition according to claim 1, wherein the vinyl chloride resin is a blend of a conventional vinyl chloride homopolymer or copolymer free from gel with a polymer obtained by reacting vinyl chloride monomer with the polyfunctional compound.
Claim 8
Dependent Claim
49 words
A composition according to claim 1, wherein the vinyl chloride resin is a blend of a conventional vinyl chloride homopolymer or copolymer free from gel with a polymer obtained by reacting a mixture of vinyl chloride monomer and a minor amount of monomer copolymerizable therewith, with the polyfunctional compound.
Claim 9
Dependent Claim
28 words
A composition according to any one of claims 1-7, wherein said vinyl chloride resin contains the tetrahydrofuran-insoluble gel fraction in an amount of 28 to 80% by weight.
Claim 10
Dependent Claim
23 words
A composition according to any one of claims 1-7, wherein said tetrahydrofuran-soluble fraction has an average degree of polymerization of 400 to 10,000.
Claim 11
Dependent Claim
23 words
A composition according to any one of claims 1-7, wherein said tetrahydrofuran-soluble fraction has an average degree of polymerization of 700 to 7,000.
Claim 12
Dependent Claim
15 words
A packing which has been molded from the composition of any one of claims 1-7.
Claim 13
Dependent Claim
15 words
A tube which has been molded from the composition of any one of claims 1-7.
Claim 14
Dependent Claim
15 words
A sheet which has been molded from the composition of any one of claims 1-7.
Claim 15
Dependent Claim
16 words
An electrical wire which has been coated with the composition of any one of claims 1-7.
References Cited (Backward Citations)
US3299180A
Cited
US3711576A
Cited
US3644578A
Cited
US3705210A
Cited
US3796776A
Cited
US4002702A
Cited
US4230832A
Cited
US4128539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-19 | 1986-01-18 | 1986-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-19 | 1990-01-18 | 1990-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-19 | 1994-01-18 | 1994-07-20 | $7700.00 | Window Closed / Lapsed |